# Airworthiness Directives; General Electric Company CF6-80A1/A3 and CF6-80C2A PMC Series Turbofan Engines
> **Rule** · Final rule. · Published 2003-06-18 · Effective 2003-07-23 · 68 FR 36455
## Document
- **Document number:** 03-15223
- **Category:** airworthiness
- **Manufacturer:** General Electric Company CF6-80A1/A3 and CF6-80C2A PMC Series Turbofan
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 68 FR 36455
- **Publication date:** 2003-06-18
- **Effective date:** 2003-07-23
- **FAA docket:** Docket No. 2002-NE-09-AD
## Abstract

This amendment adopts a new airworthiness directive (AD), that is applicable to General Electric Company (GE) CF6-80A1/A3 and CF6- 80C2A PMC series turbofan engines. This amendment requires performing either a directional pilot valve (DPV) pressure switch moisture purge procedure and an operational check of the fan reverser or replacing the DPV assembly with a serviceable assembly and performing an operational check of the fan reverser. Thereafter, this AD requires one of these actions on a repetitive basis. This amendment is prompted by a review of fan reverser safety analyses resulting from the discovery of an undetectable failure mode of the DPV pressure switch on certain GE CF6- 80C2A and CF6-80A1/A3 engine models. The actions specified by this AD are intended to prevent inadvertent fan reverser deployment, which, if it occurred in-flight, could result in loss of control of the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2003/06/18/03-15223/airworthiness-directives-general-electric-company-cf6-80a1a3-and-cf6-80c2a-pmc-series-turbofan)
---
*AI Analytics · CC0 1.0*